Overview

overview

10

Static

static

24a4530516...16.exe

windows7_x64

10

24a4530516...16.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    24a4530516dfca76a310740a3abeb76b546956d54144bf96d45cba853f9dc916

  • Size

    137KB

  • Sample

    220611-1h2mlshdej

  • MD5

    911c4ae779e7af73f21e1afdfeb951f1

  • SHA1

    bc95d722e615b2862ffbd745944ac1dafa189943

  • SHA256

    24a4530516dfca76a310740a3abeb76b546956d54144bf96d45cba853f9dc916

  • SHA512

    97901a6f794124dd67ffcc1e0e97c4639b8b35ab8ed15ad249a35a8eb82491bc50283c58e94dad8d5efd6550f0ac0364b89c34ad1a91c4e90f5755956dd04cbd

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      24a4530516dfca76a310740a3abeb76b546956d54144bf96d45cba853f9dc916

    • Size

      137KB

    • MD5

      911c4ae779e7af73f21e1afdfeb951f1

    • SHA1

      bc95d722e615b2862ffbd745944ac1dafa189943

    • SHA256

      24a4530516dfca76a310740a3abeb76b546956d54144bf96d45cba853f9dc916

    • SHA512

      97901a6f794124dd67ffcc1e0e97c4639b8b35ab8ed15ad249a35a8eb82491bc50283c58e94dad8d5efd6550f0ac0364b89c34ad1a91c4e90f5755956dd04cbd

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Creates new service(s)

      persistence

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks